OpenGD77

Good evening everyone.
For a few days my Baofeng DM860 has stopped transmitting in DMR, in analog everything is ok. Same firmware and CP on my GD77 works perfectly.
Do you have any idea? Thanks!

73 de Giuseppe iz8aju

No RF?

Hi Roger, thanks for the reply, no, RF is present.
On one occasion, I tried to disconnect the battery and it only worked for a few minutes, then on other occasions, even detaching the battery did not work in DMR anymore. In analog it is perfect!
I tried to reset from the menu and also with the function key and power on, but it didn't work.
Is there still something to try?

Best regards
Giuseppe iz8aju

If you listen on FM is there any modulation ?

Did you try reverting to the official firmware, in case the radio now has a hardware fault.

Hi Roger,
in FM it works in both TX and RX, I listen to the modulations normally.
No, I will try to restore the original firmware.
Thanks, I'll try!
73

Hello
we should know how to test the operation of the dmr, with which device (pi hat ?, repeater?) you connect.
Have you checked if the dmo (if any) is properly adjusted?
also try to disconnect the calibration, in options.
The dmr is very sensitive to frequency deviations, and an incorrect adjustment of the dmo or of the device itself makes nothing work.
also, try to tx with 1w or more... my 1801 is very erratic down to 500mW

Good evening everyone and thanks for the answers.
In these days I have tried to restart it but without success. I have also loaded the original firmware, no improvements, but I have some doubts about the firmware that I have loaded. Does anyone know a link to download an original non-Chinese firmware?
For those who asked me if I connected to a repeater or a hotspot, the answer is: the problem is always there except in analog, it's perfect!
If there is any news I will let you know, thanks again for the help.

73 Giuseppe iz8aju